Fuel supply



J. KLONARIS July 11, 1944.

FUEL SUPPLY 4 Sheets-Sheet l F11ed Feb. 19, 1941 I I Inverztlor JZW- Mira rf-'si i By I July 11, 1944. J, KLONARls 2,353,341

' FUEL SUPPLY I Filed Feb. 19, 1941 4 Sheets-Sheet 2 ll I d. 24 fi" Z Inventor J. KLONARIS Y FUEL SUPPLY i July 11, 1944.

4 Sheets-Sheet 5 Filed Feb'. 19, 1941 Z A 3 d, 3 f u L W .t 9 3 3 VVVXWVVVl/ j l V y A orney July 11, 1944. J, KLO'NARlS 2,353,341

FUEL SUPPLY Filed Feb. 19, 1941 4 SheetS-Shet 4 Inventor A orney Patented July 11, 1944 FUEL SUPPLY Joh-n Klonaris, Kankakee, lll., assignor of onethird to Bernard C.' Curby and one-third to George Cradon, both of Kankakee, Ill.

Application February 19, 1941, Serial No. 379,668 claims. t 01. 15s-37) My invention relates to improvements in fuel supplying apparatus for oil burning stoves and the like.

The principal object of the invention is to provide simply constructed, inexpensive apparatus of the type above designated for quick and easy incorporation in stoves embodying upper and lower burners, as for instance, top and oven burners, to feed both the upper and lower burners, or either, as desired, from a single supply tank and in which the number of moving parts is reduced to a minimum.

Other, and subordinate objects are .also comprehended by my invention, all of which, together with the .precise nature of my improvements will be readily understoodwhen the succeeding description and claims are read with reference to the drawings accompanying and forming part of this specification. *In said drawings:

Figure 1 is a view in rear elevation of a stove equipped according to a preferred embodiment of my invention, the stove being partly broken away to illustrate the burners therein,

Figure 2 is a view partly in vertical section and ,i partly in side elevation of the fuel supply tank, oil feed bowl for the upper burner, and'parts associated with said tank and bowl, all drawn to an enlarged scale,

Figure 3 is a view in top plan of the upper fuel feed bowl detached, i

Figure 4 is a Viewin vertical section of the fuel feed bowl for the lower burner and parts directly associated therewith and drawn tov an enlarged scale, i

Figure 5 is a View in transverse section taken on the linei5--5 of Figure 4,

Figure 6 is a view in bottom lplanof the fuel feed bowl for the lower burner, f'

Figure 7 is a view in vertical section taken on the line 1--1 of Figure 4, and

Figure 8 is a view partly in vertical section and partly in side elevation of a modified form of the apparatus.

Referring to the drawings by numerals, my improved fuel supply, in the preferred `embodiment thereof has been shown as applied to a diagrammatically illustrated table-top stove I includinga pair of upper and lower, top and oven burners 2, 3, of the well-known sleeve type.

According to the preferred embodiment of the invention, a pair of upper and lower fuelfeed Vbowls 4, 5, are provided for said burners 2, 3, respectively, which are locatedat the back of the stove I, the upper bowl 3 being secured to the stove in any suitable manner, not deemed necessary to illustrate or describe. The usual shank E of the upper burner 2 is suitably extended laterally from one side of the upper fuel feed .bowl 4 adjacent the bottom thereof into the stove I. The shank 'l of the lower burner 3 extends laterally from the lower fuel feed bowl 5 into said stove from an oil discharge nipple 8 fdepending centrally from the bottom of the lower` bowl.

The upper fuel feed bowl 4 is of elongated, at-bottomed, open top form and provided on the bottom thereof with an elongated casting II in the longitudinal center of the bowl and lhaving a coupling'sleeve I2 upstanding therefrom adjacent one end of the bowl terminating short of the top of the bowl, an externally Athreaded nipple I3 depending therefrom below the bottom of said` bowl in the axis of said sleeve, and a vertically bored boss upstanding .therefrom in the approximate center of said bowl to substantially the horizontal center of the bowl and forming an oil discharge nipple VI4, as willpresently more clearly appear. The

casting II is anchored to the bottom 9 of the bowl 4 by a pairA of 'annular bottom flanges I5, I6, surrounding said nipples I3, I4, respectively, and which are suitably tted in said bottom and secured thereto as'by solder, not shown.

Surmounting` the upper fuel feed bowl 4, and slightly spaced above the same, is a substantially rectangular and larger fuel supply tank I1 closed, with the exceptions presently noted, and disposed lengthwise over said bowl 4 longitudinally of the latter in centered relation thereto. The fuel supply tank I'lrests, adjacent one end, on a lateral ange I8 on one end of said upper bowl 4 and is supported adjacent its opposite end by means presently described. A fluid discharge neck I 9 depends from the bottom of said supply tank Il adjacent one end thereof and into the upper bowl 4 alongside the `discharge nipple I4 to a level intermediate the tcp of said nipple and the bottom 9 of said bowl, said neck having a detachable cap 20 sleeved thereon and provided with a central bleed aper- `ture 2I therein. The top 22 of the fuel supply Ltank Il has formed therein, substantially in vertical alinement with the sleeve I2 a dome 23. A suitable guard 24 on said top 22 arching over `the dome 23 protects the latter.` The dome 23 has formed therein an air channel 24 leading from said tank to the top of said dome.

A standpipe 25 arises from the casting II through the bottom of the fluid supply tank --latter 'into the sleeve 31 and is-iitted therein II and partway into the dome 23, said pipe hav- 'ing an enlarged lower end 25 resting on said groove 3U in said pipe 25 locks the latter to the fluid supply tank I'I. Solder 3l in the ange 28 forms a seal between the flange and pipet The ,-A. lower end of the standpipe 25 has a notch 32 45 is notched as at 48, for the escape of air therefrom past said valve.

As will be manifest, the fuel supply tank Il may be lifted off the upper bowl 4 carrying therewith the stand-pipe 25, dome 23, guard 24', valve cage 45 and valve 4l, so that the tank may be inverted for filling through the neck I9 and then replaced. During this operation, as soon as said valve 4l is lifted off pipe 45,V it is urged into seating position against the upper end of standpipe 25 thereby closing said end of said pipe to prevent the fuel from escaping from said tank I1 l when the latter is inverted and when it is being replaced. As will be clear, replacement of the fuel supply tank Il causes said valve 4l to open by engagement of the valve with the upper end formed therein below the top of the nipple I4 to admit fluid into the bottom of lsaid pipe.

As will now be seen, the standpipe 25 provides for admitting air therethrough by way of the Anotch 32, into the top ofthe fuel Ysupplytank Il sov that fuel in the lattermay fiow therefrom by way-ofthe neck I9 andlblee'd aperture 2| into the upperfuelfeed bowl"4andinto said pipe 25, the vfuel flowing out ofthe bowl 4 by way of the shank 6. into the upper burner 3, and when the fuel rises .in said bowl 4 and pipe 25 to the level r of the top of the notch 32, an air seal lis formed in the standpipe-25 establishing the maximum cover 33 detachably secured'ithereon lby -a set screw Y34. Therbefore mentioned discharge nip--y ple 9 lforms part of a cup-shaped laterally flanged fitting 35 secured inthe fcenter of ythe bowl 5 to the bottom of the latter by'a depending annular flange 3S extending through said bottom and fixed therein by solder, not shown. A sleeve 31 threaded at its lower end into the fitting 35 extends upV into and istted into an aperture 38 in the cover1-33, said sleeve having a side notch 39 therein adjacent the`bottom of the bowl for a purpose presently seen. A'fuel discharge pipel 49 threaded into the bottoml ofthe discharge nipple I4 depends therefrom into thelower* bowl 5 by way of -an opening r4I Vin 'the coverfl` and terminates abovethenotch 39.- vA'retainer sleeve 42 .on the'lower end lof the fluid discharge pipe 49 whereby said sleeve is yieldingly and frictionally locked to said pipe. An air pipe 44 threaded at its upper end into the nipple I3 depends Yfrom the rto terminate Yadjacent the notch 39.-

, An airxpipe 45 is-fxed at its lower'end in the sleeve I2 of casting I-I and extends upwardly through the standpipe 25fin the axis lof thelatter slightly above `the topofsaid pipe V2 5. The pipe at itsV top is open, .as at 25', around saidpipe 45 `to'relieve back pressure of air in said pipe 25 caused by rise.V of fuel in the lower end of the pipe 25. ,At the top. of-the Astandpipe 25 and'iitting in the dome 23 is a :hood-like valvecage 45' extending above both pipes 25, 45, and having an air outlctaperture 43' communicatingwith the channel 24 of saidehood.- .A spring lpressed', downwardly closing diskzvalve 47 isnormally seated 40. Air in said lower fuel feed bowl 5 is penmitted ontop oftheair pipe 45. Thetop of said pipe of the pipe 45.

The kupper edges of the notches 32 and 39 are both beveled upwardly and outwardly to prevent oil adhesion, thus facilitating opening of said notches.

Returning now to the .lower fuelrfeedjbowl 5, if the level of the fuel in the upper fuel feed bowl V4 rises above the top of the fuel discharge nipple I4, fuel will be discharged into vthe lowerfuel feed bowl 5 by way of the fuel discharge pipe to pass .through the notch 39 upwardly. through the pipe 44, nipple I3, pipe 45 .and vnotch mand aperture 46 and Achannel 24 into the tank I'I until the fuel in said bowl 5 rises to the level of the top of the notch 39 atwhich point Van air seal is formedrin sleeve 31 lpreventing the fuel from rising higher in said lower bowl 5. An air ventaper- 'ture 4S. maybe `provided in said .bowl 5 for .the

: vReferring now v'to the, operation, if 4the top ..I'I `by wayof notch 39, pipe 44, nipple i3. pipel-l,

notch 43, aperture 4G and channel k24, thus causing the supply tank to discharge into the upper fuel feed bowl 4 and raise the fuel level therein above the top of the fuel discharge .nipple I4, so that fuel from said bowl 4 may dischargeinto the lower fuel feed bowl 5 until it again reaches Vthe toplof the notch 39, thereby cutting off Yair to said tank Il and forming the before mentioned vair .seal establishing the maximum V--level .of fuel in said lower fuel feed bowl 5. v

Inthe modification shown in Figure 8, I have illustrated how, according Yt'ormy invention, one fuel supply tank 59 maybe equipped to supply a plurality of fuel feed bowls arranged one above lthe other, orY at different levels jto feed correspondingly arranged burners,- -not"shown. vIn this for-m of the` invention, Vthe neck 5I ofthe supply tank 5I) depends into a top fuel feed bowl 52 in the same manner as the neck I9 ofl 4bowl Il. A standpipe 53 extends from the bottom of the 'tank 59 into YSaid bowl to establish by formation of an air seal at the bottom of thepipe, the level of the fuel in Ysaid bowl-52 slight-ly above the bottom of the neck 53, said pipe extending V`up through said tank into a dome 54 `'injthe ltop of the latter in the same manner as Adescribedavith reference Yto the preferred -enibodimentgofthe invention. A smaller -pipe55 in thepipe y53, corresponding to pipe 45, and notched, as at 55', for the same purpose as notch 48, extends through 'fthe bottom of the tank5l) into a second fuelfeed bwl1`56 td establish a fuel level in the latter in the samel manneras pipev 53` functions in bowl The pipe 53 is-open, as atf 52', around the upper end of the pipe 55, the opening beingfor the sameV purpose las opening 25 in the preferred embodiment; of the invention. A spring pressed valve 53 is provided in the dome for seating against and closing the adjacent end of the pipe 53 when the tank 5 is removed for filling, and which is held open by contact of the pipe 55 therewith when said tank is replaced, all as and for the same purpose as described with reference to the preferred embodiment of the invention. A fuel discharge pipe 51, corresponding to the nipple Ill and pipe 40, extends downwardly out of the bowl 52 to discharge fluid from bowl 52 into bowl 56 in the same manner and under the same circumstances as described with reference to pipe 4D. Fuel discharge pipes 58, 59, 60 extend down from bowl 56 and other fluid feed bowls 6|, 62, 66 each to a subjacent bowl and for the same purpose as pipe 51. A laterally extending branch pipe 63 extends from the pipe 55 to a depending extension pipe 64 having right angled branches 65 to the bowls 6l, 62, 66 to form air seals in the last mentioned bowls just as formed by pipe 55 in bowl 55.

The operation of the modified form of the invention will be understood since it is the same substantially as described with reference to the preferred embodiment of the invention.

The foregoing will, it is believed, suffice to impart a clear understanding of the invention without further explanation.

Manifestly, the invention is susceptible of modication in other respects than as set forth herein, and right is reserved to such other modifications as fall within the scope of the subjoined claims.

What I claim is:

1. Fuel supply apparatus for use with a pair of upper and lower burners of a liquid fuel burning stove, said apparatus comprising a pair of upper and lower fuel feed receptacles adapted for feeding fuel to said pair of burners, respectively, a gravity feed fuel supply tank surmounting the upper receptacle and having a discharge neck depending into said upper receptacle, a fuel discharge line leading from the bottom of the upper receptacle to the lower receptacle and terminating in an upstanding end in the upper receptacle, means to maintain a constant level of fuel in the upper receptacle below the top of said end of said line adapted to be rendered effective under feed of fuel from the upper receptacle, and means to cause said level of fuel to rise and overflow through said end and line into the lower receptacle adapted to be rendered effective under 4 feed of fuel from the lower receptacle.

2. Fuel supply apparatus for use with a pair of upper and lower burners of a liquid fuel burning stove, said apparatus comprising a pair of upper and lower fuel supply receptacles adapted for feeding fuel to said pair of burners, respectively, a closed gravity feed fuel supply tank for supplying the upper receptacle, an upstanding fuel discharge nipple in the bottom of the upper receptacle, a fuel discharge line from said nipple to the lower receptacle, means to maintain a constant level of fuel in the upper receptacle below the top of said nipple adapted to be rendered effective under feed of fuel from the upper receptacle comprising a stand pipe extending from said upper receptacle into said tank to admit air to the top of the latter, said stand pipe having -overflow through-said nipple andV line into the lower receptacle adapted to be renderedeifective under feedfof fuel from the lower receptacle.

vif.: Fuel.. .supply apparatus foriuse with ,a pair of upper and lower burners of a liquid fuel burning stove, said apparatus comprising a pair of upper and lower fuel feed receptacles adapted for feeding fuel to said pair of burners, respectively, a gravity feed fuel tank for supplying the upper receptacle, an upstanding fuel discharge nipple in said upper receptacle, a fuel discharge line from said nipple to the lower receptacle, means to maintain a constant level of fuel in the upper receptacle below the top of said nipple adapted to be rendered effective under feed of fuel from the upper receptacle, and means to cause said level of fuel to rise and overflow through said nipple and line into the lower receptacle adapted to be rendered effective under feed of fuel from the lower receptacle comprising an air line extending upwardly from the lower receptacle through the upper receptacle to the top of said tank and having a lower end in the bottom of the lower receptacle provided with an air inlet notch therein sealed by the fuel in said lower receptacle when such fuel reaches a level even with the top of said notch and unsealed when such fuel falls below said top of said notch.

4. Fuel supply apparatus for use with a pair of upper and lower burners of a liquid fuel burning stove, said apparatus comprising a pair of upper and lower fuel feed receptacles adapted for feeding fuel to said pair of burners, respectively, a gravity feed fuel tank for supplying the upper receptacle, an upstanding fuel discharge nipple in said upper receptacle, a fuel discharge line from said nipple to the lower receptacle, means to maintain a constant level of fuel in the upper receptacle below the top of said nipple adapted to be rendered effective under feed of fuel from the upper receptacle, means to cause said level of fuel to rise and overflow through said nipple and line into the lower receptacle adapted to be rendered effective under feed of fuel from the lower receptacle comprising an air line extending upwardly from the lower receptacle through the upper receptacle to the top of said tank and having a lower end in the bottom of the lower receptacle provided with an air inlet notch therein sealed by the fuel in said lower receptacle when such fuel reaches a level even with the top of said notch and unsealed when such fuel falls below said top of said notch, and a discharge nipple in the bottom of the lower receptacle communicating with the lower end of said air line and adapted to be connected to the lower burner.

5. Fuel supply apparatus for a liquid fuel burner of a stove comprising an open top pan-like fuel feed receptacle to which the burner is adapted to be connected, a closed gravity feed tank superposed on said receptacle and having a bottom discharge neck depending into said receptacle, said tank being removable from said receptacle to be inverted for filling through said neck, and means to maintain a constant level of fuel in said receptacle comprising an air dome upstanding from the top of said tank, a stand pipe arising from the bottom of said receptacle upwardly through the bottom of the tank, said pipe havingv an upper end terminating in said dome and being removable with said tank, the lower end of said pipe having a notch therein sealed by the `fuel when the latter reaches a. level in said receptacle even with the top of the notch,and said notch admitting air to said pipe when the fuel falls below said level, and means to close the upper end of said pipe when the tank is removed comprising a valve spring loaded for closing as an incident to removal of .said tank whereby the tank may be inverted and lled without uid entering said pipe, and means in said stand pipe coacting with said valve when the tank is superposed on said receptacle to maintain the valve 5 Open. 

